My 02 came from the factory w/no cat.
Not to disagree with stroketech, but I thought it was more of a destination thing too, because i've heard of(not seen)02's with cats on them.
Whatever year it is, there will be a sticker under the hood near the belt diagram that refers to a "catalytic converter" or a "catalyst" if it originally had one on it.
No sticker-No Problem
chris